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Commit eb05c324 authored by Jan Beulich's avatar Jan Beulich Committed by Linus Torvalds
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[PATCH] i386: fix bound check IDT gate 



Other than apparently commonly assumed, the bound instruction does not
require the corresponding IDT entry to have DPL 3.

Acked-by: default avatar"Seth, Rohit" <rohit.seth@intel.com>
Acked-by: default avatarZachary Amsden <zach@vmware.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent d43c6e80

arch/i386/kernel/traps.c

+2 −2
Original line number Diff line number Diff line
@@ -1078,9 +1078,9 @@ void __init trap_init(void) 
	set_trap_gate(0,&divide_error);

	set_intr_gate(1,&debug);

	set_intr_gate(2,&nmi);

	set_system_intr_gate(3, &int3); /* int3-5 can be called from all */

	set_system_intr_gate(3, &int3); /* int3/4 can be called from all */

	set_system_gate(4,&overflow);

	set_system_gate(5,&bounds);

	set_trap_gate(5,&bounds);

	set_trap_gate(6,&invalid_op);

	set_trap_gate(7,&device_not_available);

	set_task_gate(8,GDT_ENTRY_DOUBLEFAULT_TSS);